68/90 as a percentage is 75.56%. This value comes from turning the fraction into a familiar percent that’s easy to compare with other numbers.
The fraction 68/90 can also be written in its simplest form as 34/45. Whether you see it as 68 parts out of 90 or 34 out of 45, the size of the part stays the same, and the percent stays at 75.56%.
Knowing the percent helps when you need to work with grades, discounts, or any situation where a percentage is the standard way to show a part of a whole. It’s a quick way to see that the fraction represents just over three‑quarters of the total.